In Mexico City, "'Til death do us part" may turn into "'Til I'm sick of you."

Leftist lawmakers in the city's assembly are proposing a new amendment that eliminates the eternal bliss component from a marriage contract, providing couples with an easier exit strategy than divorce.

The new legislation, designed to avoid the hassle of the divorce process, would allow for temporary marriage contracts and give couples the freedom to opt out of a lifetime commitment. The reformed civil code would outline issues including custody of children and shared property, but only requires a couple to sign for a minimum of two years.

"The proposal is, when the two-year period is up, if the relationship is not stable or harmonious, the contract simply ends," said Leonel Luna, a Mexico City assemblyman and member of the leftist Party of the Democratic Revolution.